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    RAID for partitions?

    Discussion in 'Hardware Components and Aftermarket Upgrades' started by emike09, Jul 16, 2009.

  1. emike09

    emike09 Overclocking Champion

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    I've got an external 1TB drive split in two partitions. I keep an exact copy of my important files on each partition. I'm wondering if there is a way to for a RAID 1 instance for the drive, so the files are automatically split two ways. I know it would severely decrease performance, but looking to make something like this happen.
     
  2. qhn

    qhn Notebook User

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    You mean like synchronizing files on both partitions?

    cheers ...
     
  3. davepermen

    davepermen Notebook Nobel Laureate

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    and why? if the hdd fails, both partitions are dead. if you somehow delete the file, both will be gone, too.

    for raid, you need more than one drive. that's why it's called "redundant array of independent disks" (or inexpensive, what ever).
     
  4. jackluo923

    jackluo923 Notebook Virtuoso

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    You can create 2 virtual drives, each on different partitions and RAID them.
     
  5. emike09

    emike09 Overclocking Champion

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    Well because sometimes only a partition fails, not the entire drive. Just another extra step of protection. External RAIDs are too expensive to be feasable for what I'm doing.
     
  6. nacholambre

    nacholambre Notebook Consultant

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    I dont think it works like that mate! Usually HDD fail when the reader fails mate! On the same HDD they share the same reader head so different partitions are on the same boat my friend! To make sure your driver doesnt fail easy I suggest buying famous brands of HDDs like Western Digital. Check them out!
     
  7. davepermen

    davepermen Notebook Nobel Laureate

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    no. not in a raid environment with partitions. if something fails because of software, then the fail would propagate to BOTH copies instantly.
    if hw fails, the whole disk normally is inaccessible, most of the time.

    if you want savety, get a real backup solution. get it out of the laptop. (check my home server for an idea). or get more than one disk into the laptop (but software failures still fail on both copies. backup still needed).

    rule 1 about data savety: no raid can replace a backup.
    rule 2: raid needs >1 disk. disks fail as a whole.



    so your solution won't give you additional savety. it may, in certain cases, mean less hazzle. but for the speed drop, the additional setup, etc, it won't outweight the additional configuration hazzle you have upfront.
     
  8. emike09

    emike09 Overclocking Champion

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    I guess I could always use Windows Backup to make incremental backups of Partition 1 to Partition 2 every day.